OPTIGRADE
Summary of public USPTO data
- Owner
- Corning Incorporated
- Status
- Live/Registered
- Serial number
- 98712975
- Registration number
- 8245579
- Filing date
- 2024-08-22
- Registration date
- 2026-05-05
- International classes
- 9
Goods and services
Class 9
- Semi-finished products made of calcium fluoride crystals, namely, optical lens blanks of calcium fluoride and optical lenses of calcium fluoride